ctor-oscillator.html | Explore in Territory

<!DOCTYPE html>
<html>
  <head>
    <title>
      Test Constructor: Oscillator
    </title>
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <script src="/webaudio/resources/audit-util.js"></script>
    <script src="/webaudio/resources/audit.js"></script>
    <script src="/webaudio/resources/audionodeoptions.js"></script>
  </head>
  <body>
    <script id="layout-test-code">
      let context;

      let audit = Audit.createTaskRunner();

      audit.define('initialize', (task, should) => {
        context = initializeContext(should);
        task.done();
      });

      audit.define('invalid constructor', (task, should) => {
        testInvalidConstructor(should, 'OscillatorNode', context);
        task.done();
      });

      audit.define('default constructor', (task, should) => {
        let prefix = 'node0';
        let node = testDefaultConstructor(should, 'OscillatorNode', context, {
          prefix: prefix,
          numberOfInputs: 0,
          numberOfOutputs: 1,
          channelCount: 2,
          channelCountMode: 'max',
          channelInterpretation: 'speakers'
        });

        testDefaultAttributes(
            should, node, prefix,
            [{name: 'type', value: 'sine'}, {name: 'frequency', value: 440}]);

        task.done();
      });

      audit.define('test AudioNodeOptions', (task, should) => {
        testAudioNodeOptions(should, context, 'OscillatorNode');
        task.done();
      });

      audit.define('constructor options', (task, should) => {
        let node;
        let options = {type: 'sawtooth', detune: 7, frequency: 918};

        should(
            () => {
              node = new OscillatorNode(context, options);
            },
            'node1 = new OscillatorNode(c, ' + JSON.stringify(options) + ')')
            .notThrow();

        should(node.type, 'node1.type').beEqualTo(options.type);
        should(node.detune.value, 'node1.detune.value')
            .beEqualTo(options.detune);
        should(node.frequency.value, 'node1.frequency.value')
            .beEqualTo(options.frequency);

        should(node.channelCount, 'node1.channelCount').beEqualTo(2);
        should(node.channelCountMode, 'node1.channelCountMode')
            .beEqualTo('max');
        should(node.channelInterpretation, 'node1.channelInterpretation')
            .beEqualTo('speakers');

        // Test that type and periodicWave options work as described.
        options = {
          type: 'sine',
          periodicWave: new PeriodicWave(context, {real: [1, 1]})
        };
        should(() => {
          node = new OscillatorNode(context, options);
        }, 'new OscillatorNode(c, ' + JSON.stringify(options) + ')').notThrow();

        options = {type: 'custom'};
        should(
            () => {
              node = new OscillatorNode(context, options);
            },
            'new OscillatorNode(c, ' + JSON.stringify(options) + ')')
            .throw(DOMException, 'InvalidStateError');

        options = {
          type: 'custom',
          periodicWave: new PeriodicWave(context, {real: [1, 1]})
        };
        should(() => {
          node = new OscillatorNode(context, options);
        }, 'new OscillatorNode(c, ' + JSON.stringify(options) + ')').notThrow();

        should(
            () => {
              node = new OscillatorNode(context, {periodicWave: null});
            },
            'new OscillatorNode(c, {periodicWave: null}')
            .throw(DOMException, 'TypeError');
        task.done();
      });

      audit.run();
    </script>
  </body>
</html>
chromium/third_party/blink/web_tests/external/wpt/webaudio/the-audio-api/the-oscillatornode-interface/ctor-oscillator.html
